Well I guess I’m a Linux user now.
One of us! Welcome!
Gnome apparently doesn’t let you create desktop shortcuts unless you resort to command line.
GNOME is indeed very opinionated. Consider taking a look at any of the "Desktop Icons"-extensions on extensions.gnome.org. This enables one to engage with desktop shortcuts without opening a terminal.
Linux is NOT dumbed down enough for the average user yet.
Depends. I can't imagine how something like Endless OS could cause troubles to someone that only requires simple functionality (like e.g. their favorite web browser working etc) from their OS.
As a final note some Linux users push harder than crack dealers I’ve met.
Yes. We can be very enthusiastic at times 😅.
I do think that engaging with different desktop environments at this stage of your Linux journey might be very beneficial in the long run, but I can totally understand it if you'd like to settle down for (at least) a moment.